05-19-2009, 12:37 PM
what the (insomnia) said is true,and additional informations that the neck area of the spinal cord which is called cervical area containing c1,c2......c8 and they forming with T1 a plexes that located in the area of the armpit and only have role in the ipsilateral upper limb(arm,forearm and hand),also the afferent and efferent nervr supply of lower limb will be paralysed,while heart beats automatically by conducting system and vagus nerve which is coming from brain not from the spinal cord,and so for others ,briefly the nervious system of human composed of brain and spinal cord,brain control hearing ,speech,vision,smelling,breathing somewhat,while spinal cord control the locomotary system,autonomic and musculoskeletal system.
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